/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef GrSurfaceProxyPriv_DEFINED
#define GrSurfaceProxyPriv_DEFINED

#include "src/gpu/ganesh/GrSurfaceProxy.h"

#include "src/gpu/SkBackingFit.h"

class GrResourceProvider;

/* * Class that adds methods to GrSurfaceProxy that are only intended for use internal to Skia.
    This class is purely a privileged window into GrSurfaceProxy. It should never have additional
    data members or virtual methods. */
class GrSurfaceProxyPriv {
public:
    void computeScratchKey(const GrCaps &caps, skgpu::ScratchKey *key) const
    {
        return fProxy->computeScratchKey(caps, key);
    }

    // Create a GrSurface-derived class that meets the requirements (i.e, desc, renderability)
    // of the GrSurfaceProxy.
    sk_sp<GrSurface> createSurface(GrResourceProvider *resourceProvider) const
    {
        return fProxy->createSurface(resourceProvider);
    }

    // Assign this proxy the provided GrSurface as its backing surface
    void assign(sk_sp<GrSurface> surface)
    {
        fProxy->assign(std::move(surface));
    }

    // Don't abuse this call!!!!!!!
    bool isExact() const
    {
        return SkBackingFit::kExact == fProxy->fFit;
    }

    // Don't. Just don't.
    void exactify(bool allocatedCaseOnly);

    void setLazyDimensions(SkISize dimensions)
    {
        fProxy->setLazyDimensions(dimensions);
    }

    bool doLazyInstantiation(GrResourceProvider *);

    void setIsDDLTarget()
    {
        fProxy->fIsDDLTarget = true;
    }

    void setIsPromiseProxy()
    {
        fProxy->fIsPromiseProxy = true;
    }

private:
    explicit GrSurfaceProxyPriv(GrSurfaceProxy *proxy) : fProxy(proxy) {}
    GrSurfaceProxyPriv &operator = (const GrSurfaceProxyPriv &) = delete;

    // No taking addresses of this type.
    const GrSurfaceProxyPriv *operator&() const;
    GrSurfaceProxyPriv *operator&();

    GrSurfaceProxy *fProxy;

    friend class GrSurfaceProxy; // to construct/copy this type.
};

inline GrSurfaceProxyPriv GrSurfaceProxy::priv()
{
    return GrSurfaceProxyPriv(this);
}

inline const GrSurfaceProxyPriv GrSurfaceProxy::priv() const
{ // NOLINT(readability-const-return-type)
    return GrSurfaceProxyPriv(const_cast<GrSurfaceProxy *>(this));
}

#endif
